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stress2: Added regression tests

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This commit is contained in:
Peter Holm 2022-09-26 09:50:37 +02:00
parent 7a58bf0443
commit 977d8fb9ad
4 changed files with 701 additions and 0 deletions
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193
tools/test/stress2/misc/setrlimit.sh Executable file
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#!/bin/sh
#
# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
#
# Copyright (c) 2022 Peter Holm <pho@FreeBSD.org>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
# Test setrlimit() max file size and ftruncate()
# Problem seen:
# Testing UFS -O1
# setrlimit: ftruncate(5413) did not fail. limit = 2791
# Testing FFS -U
# setrlimit: ftruncate(9956) did not fail. limit = 7880
# Testing msdosfs
# setrlimit: ftruncate(9033) did not fail. limit = 5884
# Testing tmpfs
# setrlimit: ftruncate(123) did not fail. limit = 86
. ../default.cfg
cat > /tmp/setrlimit.c <<EOF
#include <sys/types.h>
#include <sys/resource.h>
#include <sys/stat.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
static int signals;
static void
handler(int sig __unused)
{
#if defined(DEBUG)
fprintf(stderr, "Got signal SIGXFSZ\n");
#endif
signals++;
}
void
test(int argc, char *argv[])
{
struct rlimit rlim;
rlim_t limit, sz;
struct sigaction act;
long pos;
int e, expected, fd;
char file[] = "setrlimit.file";
if (argc != 2) {
fprintf(stderr, "Usage: %s <FS size>\n", argv[0]);
exit(1);
}
expected = signals = 0;
sz = atol(argv[1]);
arc4random_buf(&limit, sizeof(limit));
if (limit < 0)
limit = -limit;
limit = limit % sz + 1;
rlim.rlim_cur = rlim.rlim_max = limit;
if (setrlimit(RLIMIT_FSIZE, &rlim) == -1)
err(1, "setrlimit(%ld)", limit);
act.sa_handler = handler;
act.sa_flags = 0;
sigemptyset(&act.sa_mask);
if (sigaction(SIGXFSZ, &act, NULL) != 0)
err(1, "sigaction");
if ((fd = open(file, O_WRONLY | O_CREAT | O_TRUNC, DEFFILEMODE)) == -1)
err(1, "open(%s)", file);
e = 0;
arc4random_buf(&pos, sizeof(pos));
if (pos < 0)
pos = -pos;
pos = pos % (limit * 2);
if (pos > limit)
expected = 1;
if (ftruncate(fd, pos) == -1) {
e = errno;
if (pos <= limit)
errc(1, e, "ftruncate(%ld), limit = %ld", pos, limit);
} else {
if (pos > limit)
errx(1, "ftruncate(%ld) did not fail. limit = %ld", pos, limit);
}
if (lseek(fd, limit - 1, SEEK_SET) == -1)
err(1, "lseek(limit - 1)");
if (write(fd, "a", 1) != 1)
err(1, "write() at limit - 1. limit = %ld", limit);
if (write(fd, "b", 1) != -1)
err(1, "write() at limit. limit = %ld", limit);
expected++;
/* Partial write test. No signal is expected */
if (lseek(fd, limit - 1, SEEK_SET) == -1)
err(1, "lseek(limit - 1)");
if (write(fd, "12", 2) != 1)
err(1, "write() at limit - 1. limit = %ld", limit);
if (signals != expected)
errx(1, "Expected %d signals, got %d", expected, signals);
close(fd);
unlink(file);
}
int
main(int argc, char *argv[])
{
int i;
for (i = 0; i < 100; i++)
test(argc, argv);
}
EOF
here=`pwd`
s=0
cc -o /tmp/setrlimit -Wall -Wextra -O0 -g /tmp/setrlimit.c || exit 1
mount | grep "on $mntpoint " | grep -q /dev/md && umount -f $mntpoint
[ -c /dev/md$mdstart ] && mdconfig -d -u $mdstart
echo "Testing UFS -O1"
mdconfig -t swap -s 1g -u $mdstart
newfs -O1 /dev/md$mdstart > /dev/null
mount /dev/md$mdstart $mntpoint
cd $mntpoint; /tmp/setrlimit 10000 || s=1
cd $here
umount $mntpoint
mdconfig -d -u $mdstart
echo "Testing FFS -U"
mdconfig -t swap -s 1g -u $mdstart
newfs -U /dev/md$mdstart > /dev/null
mount /dev/md$mdstart $mntpoint
cd $mntpoint; /tmp/setrlimit 10000 || s=$((s + 2))
cd $here
umount $mntpoint
mdconfig -d -u $mdstart
echo "Testing msdosfs"
mdconfig -t swap -s 1g -u $mdstart
newfs_msdos -F 32 -b 8192 /dev/md$mdstart > /dev/null 2>&1
mount -t msdosfs /dev/md$mdstart $mntpoint
cd $mntpoint; /tmp/setrlimit 10000 || s=$((s + 4))
cd $here
umount $mntpoint
mdconfig -d -u $mdstart
echo "Testing tmpfs"
mount -o size=20000 -t tmpfs dummy $mntpoint
cd $mntpoint; /tmp/setrlimit 10000 || s=$((s + 8))
cd $here
umount $mntpoint
rm -f /tmp/setrlimit /tmp/setrlimit.c
exit $s

118
tools/test/stress2/misc/setrlimit2.sh Executable file
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#!/bin/sh
#
# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
#
# Copyright (c) 2022 Peter Holm <pho@FreeBSD.org>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# Demonstrate that a mapped SHARED file can be updated past past LIMIT_FSIZE
# Kostik wrote:
# This one should be reproducible when you
# - have file larger than e.g. RLIMIT_FSIZE
# - mmaped it without closing the file descriptor
# - dirty its pages beyond the limit
# - then unmap
# - then close the file descriptor.
[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
. ../default.cfg
cat > /tmp/setrlimit2.c <<EOF
#include <sys/param.h>
#include <sys/mman.h>
#include <sys/resource.h>
#include <sys/stat.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
static int signals;
static void
handler(int sig __unused)
{
signals++;
}
int
main(int argc, char *argv[])
{
struct rlimit rlim;
struct sigaction act;
struct stat st;
size_t len;
int error, fd, ps;
char *file, *p;
if (argc != 2) {
fprintf(stderr, "Usage: %s <data file>\n", argv[0]);
exit(1);
}
act.sa_handler = handler;
act.sa_flags = 0;
sigemptyset(&act.sa_mask);
if (sigaction(SIGXFSZ, &act, NULL) != 0)
err(1, "sigaction");
file = argv[1];
ps = getpagesize();
if ((fd = open(file, O_RDWR)) == -1)
err(1, "open(%s)", file);
if ((error = fstat(fd, &st)) == -1)
err(1, "stat(%s)", file);
len = round_page(st.st_size);
if ((p = mmap(NULL, len, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0)) == MAP_FAILED)
err(1, "mmap");
rlim.rlim_cur = rlim.rlim_max = len / 2;;
if (setrlimit(RLIMIT_FSIZE, &rlim) == -1)
err(1, "setrlimit(%ld)", len / 2);
p[len / 2 + ps] = 'a';
if (munmap(p, len) == -1)
err(1, "unmap()");
close(fd);
}
EOF
here=`pwd`
cd /tmp
mycc -o setrlimit2 -Wall -Wextra -O0 -g setrlimit2.c || exit 1
data=/tmp/setrlimit2.data
dd if=/dev/zero of=$data bs=1m count=1 status=none
h1=`md5 < $data`
./setrlimit2 $data
h2=`md5 < $data`
rm -f /tmp/setrlimit2 /tmp/setrlimit2.c
[ $h1 = $h2 ] && exit 1 || exit 0

182
tools/test/stress2/misc/sigreturn3.sh Executable file
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#!/bin/sh
#
# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
#
# Copyright (c) 2022 Peter Holm <pho@FreeBSD.org>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# Fatal trap -4186856: UNKNOWN while in kernel mode
# cpuid = 1; apic id = 01
# error code = 0xfbafcf8c
# instruction pointer = 0x79e4:0x4
# stack pointer = 0x28:0xffc0aff0
# frame pointer = 0x28:0x204620d4
# code segment = base 0x0, limit 0x0, type 0x0
# = DPL 0, pres 0, def32 0, gran 0
# processor eflags = trace trap, at 0x3b/frame 0xffc0340c
# KDB: enter: panic
# [ thread pid 15631 tid 114622 ]
# Stopped at kdb_enter+0x34: movl $0,kdb_why
# db>
[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
prog=sigreturn3
cat > /tmp/$prog.c <<EOF
#include <sys/types.h>
#include <sys/resource.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/wait.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <libutil.h>
#include <pthread.h>
#include <pwd.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#define N 4096
#define RUNTIME 120
#define THREADS 1
static uint32_t r[N];
static void
hand(int i __unused) { /* handler */
exit(1);
}
static void *
churn(void *arg __unused)
{
time_t start;
pthread_set_name_np(pthread_self(), __func__);
start = time(NULL);
while (time(NULL) - start < 10) {
arc4random_buf(r, sizeof(r));
usleep(100);
}
return(NULL);
}
static void *
calls(void *arg __unused)
{
time_t start;
int i;
start = time(NULL);
for (i = 0; time(NULL) - start < 10; i++) {
arc4random_buf(r, sizeof(r));
alarm(1);
syscall(SYS_sigreturn, r);
}
return (NULL);
}
int
main(int argc, char **argv)
{
struct passwd *pw;
struct rlimit limit;
pid_t pid;
pthread_t rp, cp[THREADS];
time_t start;
int e, j;
if ((pw = getpwnam("nobody")) == NULL)
err(1, "failed to resolve nobody");
if (getenv("USE_ROOT") && argc == 2)
fprintf(stderr, "Running syscall4 as root for %s.\n",
argv[1]);
else {
if (setgroups(1, &pw->pw_gid) ||
setegid(pw->pw_gid) || setgid(pw->pw_gid) ||
seteuid(pw->pw_uid) || setuid(pw->pw_uid))
err(1, "Can't drop privileges to \"nobody\"");
endpwent();
}
limit.rlim_cur = limit.rlim_max = 1000;
#if defined(RLIMIT_NPTS)
if (setrlimit(RLIMIT_NPTS, &limit) < 0)
err(1, "setrlimit");
#endif
signal(SIGALRM, hand);
signal(SIGILL, hand);
signal(SIGFPE, hand);
signal(SIGSEGV, hand);
signal(SIGBUS, hand);
signal(SIGURG, hand);
signal(SIGSYS, hand);
signal(SIGTRAP, hand);
if (daemon(1, 1) == -1)
err(1, "daemon()");
start = time(NULL);
while ((time(NULL) - start) < RUNTIME) {
if ((pid = fork()) == 0) {
if ((e = pthread_create(&rp, NULL, churn, NULL)) != 0)
errc(1, e, "pthread_create");
for (j = 0; j < THREADS; j++)
if ((e = pthread_create(&cp[j], NULL, calls,
NULL)) != 0)
errc(1, e, "pthread_create");
for (j = 0; j < THREADS; j++)
pthread_join(cp[j], NULL);
if ((e = pthread_kill(rp, SIGINT)) != 0)
errc(1, e, "pthread_kill");
if ((e = pthread_join(rp, NULL)) != 0)
errc(1, e, "pthread_join");
_exit(0);
}
waitpid(pid, NULL, 0);
}
return (0);
}
EOF
cd /tmp
cc -o $prog -Wall -Wextra -O0 $prog.c -lpthread || exit 1
start=`date +%s`
while [ $((`date +%s` - start)) -lt 300 ]; do
./$prog > /dev/null 2>&1
date +%T
done
rm -f /tmp/$prog /tmp/$ptog.c /tmp/$prog.core
exit 0

208
tools/test/stress2/misc/sigreturn4.sh Executable file
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#!/bin/sh
# panic: vm_fault_lookup: fault on nofault entry, addr: 0
# cpuid = 2
# time = 1661698922
# KDB: stack backtrace:
# db_trace_self_wrapper(b,2931e740,2931e742,ffc0ddb8,190431,...) at db_trace_self_wrapper+0x28/frame 0xffc0dd24
# vpanic(150acba,ffc0dd60,ffc0dd60,ffc0de20,12cc155,...) at vpanic+0xf4/frame 0xffc0dd40
# panic(150acba,14ec1ab,0,146253d,1430,...) at panic+0x14/frame 0xffc0dd54
# vm_fault(1e360c8,0,4,0,0) at vm_fault+0x1725/frame 0xffc0de20
# vm_fault_trap(1e360c8,3b,4,0,0,0) at vm_fault_trap+0x52/frame 0xffc0de48
# trap_pfault(3b,0,0) at trap_pfault+0x176/frame 0xffc0de94
# trap(ffc0df6c,8,28,28,19156000,...) at trap+0x2d9/frame 0xffc0df60
# calltrap() at 0xffc031ef/frame 0xffc0df60
# --- trap 0xc, eip = 0x3b, esp = 0xffc0dfac, ebp = 0xffc0340c ---
# (null)() at 0x3b/frame 0xffc0340c
# KDB: enter: panic
# [ thread pid 54680 tid 102765 ]
# Stopped at kdb_enter+0x34: movl $0,kdb_why
# db> x/s version
# version: FreeBSD 14.0-CURRENT #0 main-n257606-9ea2716b775-dirty: Thu Aug 25 10:47:45 CEST 2022
# pho@mercat1.netperf.freebsd.org:/media/ob
# j/usr/src/i386.i386/sys/PHO\012
# db> show proc
# Process 54680 (date) at 0x28905d50:
# state: NORMAL
# uid: 0 gids: 0, 0, 5
# parent: pid 785 at 0x26c14000
# ABI: FreeBSD ELF32
# flag: 0x10004002 flag2: 0
# arguments: date +%s
# reaper: 0x18c710a4 reapsubtree: 1
# sigparent: 20
# vmspace: 0x29332100
# (map 0x29332100)
# (map.pmap 0x29332174)
# (pmap 0x293321b0)
# threads: 1
# 102765 Run CPU 2 date
# db>
[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
prog=sigreturn4
cat > /tmp/$prog.c <<EOF
#include <sys/types.h>
#include <sys/resource.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/wait.h>
#include <ucontext.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <libutil.h>
#include <pthread.h>
#include <pwd.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#define RUNTIME 120
#define THREADS 1
static void
hand(int i __unused) { /* handler */
_exit(1);
}
static long
random_long(long mi, long ma)
{
return (arc4random() % (ma - mi + 1) + mi);
}
static void
flip(void *ap, size_t len)
{
unsigned char *cp;
int byte;
unsigned char bit, buf, mask, old __unused;
cp = (unsigned char *)ap;
byte = random_long(0, len);
bit = random_long(0,7);
mask = ~(1 << bit);
buf = cp[byte];
old = cp[byte];
buf = (buf & mask) | (~buf & ~mask);
cp[byte] = buf;
}
static void *
churn(void *arg __unused)
{
time_t start;
start = time(NULL);
while (time(NULL) - start < 10) {
usleep(100);
}
return(NULL);
}
static void *
calls(void *arg __unused)
{
time_t start;
ucontext_t uc;
int i, n;
start = time(NULL);
for (i = 0; time(NULL) - start < 10; i++) {
n = 0;
if (getcontext(&uc) == -1)
err(1, "getcontext");
n++;
if (n == 1) {
flip(&uc, sizeof(uc));
alarm(1);
if (sigreturn(&uc) == -1)
err(1, "sigreturn()");
} else
break;
}
return (NULL);
}
int
main(int argc, char **argv)
{
struct passwd *pw;
struct rlimit limit;
pid_t pid;
pthread_t rp, cp[THREADS];
time_t start;
int e, j;
if ((pw = getpwnam("nobody")) == NULL)
err(1, "failed to resolve nobody");
if (getenv("USE_ROOT") && argc == 2)
fprintf(stderr, "Running sigreturn4 as root for %s.\n",
argv[1]);
else {
if (setgroups(1, &pw->pw_gid) ||
setegid(pw->pw_gid) || setgid(pw->pw_gid) ||
seteuid(pw->pw_uid) || setuid(pw->pw_uid))
err(1, "Can't drop privileges to \"nobody\"");
endpwent();
}
limit.rlim_cur = limit.rlim_max = 1000;
#if defined(RLIMIT_NPTS)
if (setrlimit(RLIMIT_NPTS, &limit) < 0)
err(1, "setrlimit");
#endif
signal(SIGALRM, hand);
signal(SIGILL, hand);
signal(SIGFPE, hand);
signal(SIGSEGV, hand);
signal(SIGBUS, hand);
signal(SIGURG, hand);
signal(SIGSYS, hand);
signal(SIGTRAP, hand);
if (daemon(1, 1) == -1)
err(1, "daemon()");
start = time(NULL);
while ((time(NULL) - start) < RUNTIME) {
if ((pid = fork()) == 0) {
if ((e = pthread_create(&rp, NULL, churn, NULL)) != 0)
errc(1, e, "pthread_create");
for (j = 0; j < THREADS; j++)
if ((e = pthread_create(&cp[j], NULL, calls,
NULL)) != 0)
errc(1, e, "pthread_create");
for (j = 0; j < THREADS; j++)
pthread_join(cp[j], NULL);
if ((e = pthread_kill(rp, SIGINT)) != 0)
errc(1, e, "pthread_kill");
if ((e = pthread_join(rp, NULL)) != 0)
errc(1, e, "pthread_join");
_exit(0);
}
waitpid(pid, NULL, 0);
}
return (0);
}
EOF
cd /tmp
cc -o $prog -Wall -Wextra -O0 $prog.c -lpthread || exit 1
start=`date +%s`
while [ $((`date +%s` - start)) -lt 300 ]; do
./$prog > /dev/null 2>&1
date +%T
done
rm -f /tmp/$prog /tmp/$ptog.c /tmp/$prog.core
exit 0